Complete this analogy: Testes are to gonads as sperm are to:
A) ova.
B) sex hormones.
C) estrogen.
D) gametes.
Answer: D
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Which of the following is the correct sequence of events for muscle contractions?
A) muscle cell action potential, neurotransmitter release, ATP-driven power stroke, calcium ion release from SR, sliding of myofilaments B) motor neuron action potential, neurotransmitter release, muscle cell action potential, release of calcium ions from SR, ATP-driven power stroke, sliding of myofilaments C) neurotransmitter release, motor neuron action potential, muscle cell action potential, release of calcium ions from SR, ATP-driven power stroke D) neurotransmitter release, muscle cell action potential, motor neuron action potential, release of calcium ions from SR, sliding of myofilaments, ATP-driven power stroke
Define the underlined terms in the following case study. A 2-year-old goat of superior conformation presented at the clinic for a routine examination. The owner stated that the animal regularly received a high-quality premix as well as silage because it was intended to produce cabrito. The veterinarian noted that the animal had undergone debudding
What will be an ideal response?
Which statement about excitation-contraction coupling is incorrect?
A) Calcium ion is released from the transverse tubule. B) Calcium ion is released from the sarcoplasmic reticulum. C) Tropomyosin moves to expose myosin binding sites on actin. D) Troponin binds calcium ion and signals tropomyosin to move. E) Relaxation requires uptake of calcium ions by the sarcoplasmic reticulum.
A ________ is used to show all possible combinations of genes that can result from a given parental cross
A) pedigree B) Punnett square C) karyotype D) phenotype E) family tree